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8f35f8148e
* Fix bug where a new writer advances their token too quickly When starting a new writer (for e.g. persisting events), the `MultiWriterIdGenerator` doesn't have a minimum token for it as there are no rows matching that new writer in the DB. This results in the the first stream ID it acquired being announced as persisted *before* it actually finishes persisting, if another writer gets and persists a subsequent stream ID. This is due to the logic of setting the minimum persisted position to the minimum known position of across all writers, and the new writer starts off not being considered. * Fix sending out POSITIONs when our token advances without update Broke in #14820 * For replication HTTP requests, only wait for minimal position
74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
# Copyright 2022 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import TYPE_CHECKING
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import attr
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from synapse.replication.tcp.streams._base import _StreamFromIdGen
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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@attr.s(slots=True, frozen=True, auto_attribs=True)
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class UnPartialStatedRoomStreamRow:
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# ID of the room that has been un-partial-stated.
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room_id: str
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class UnPartialStatedRoomStream(_StreamFromIdGen):
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"""
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Stream to notify about rooms becoming un-partial-stated;
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that is, when the background sync finishes such that we now have full state for
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the room.
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"""
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NAME = "un_partial_stated_room"
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ROW_TYPE = UnPartialStatedRoomStreamRow
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def __init__(self, hs: "HomeServer"):
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store = hs.get_datastores().main
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super().__init__(
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hs.get_instance_name(),
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store.get_un_partial_stated_rooms_from_stream,
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store._un_partial_stated_rooms_stream_id_gen,
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)
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@attr.s(slots=True, frozen=True, auto_attribs=True)
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class UnPartialStatedEventStreamRow:
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# ID of the event that has been un-partial-stated.
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event_id: str
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# True iff the rejection status of the event changed as a result of being
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# un-partial-stated.
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rejection_status_changed: bool
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class UnPartialStatedEventStream(_StreamFromIdGen):
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"""
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Stream to notify about events becoming un-partial-stated.
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"""
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NAME = "un_partial_stated_event"
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ROW_TYPE = UnPartialStatedEventStreamRow
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def __init__(self, hs: "HomeServer"):
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store = hs.get_datastores().main
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super().__init__(
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hs.get_instance_name(),
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store.get_un_partial_stated_events_from_stream,
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store._un_partial_stated_events_stream_id_gen,
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)
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